Electrically heated insole

Abstract

Electrically heated insole comprising an insole body (1), wherein the insole body (1) is divided into a forefoot area (11), an arch area (12) and a heel area (13), characterized in that a trimmable area (101) is provided at the edge of the insole body (1), in which several trimming guide lines (102) are provided which are proportionally reduced starting from the center of the insole body (1), wherein shoe size markings (103) are provided section by section at the edges of the trimming guide lines (102), wherein in partial areas of the forefoot area (11) and the heel area (13) a front heating area (104) and a rear heating area (105) spaced apart from the trimmable area (101) are defined,wherein a first heating wire (106) is embedded in the inner layer of the front heating area (104) and a second heating wire (107) is embedded in the inner layer of the rear heating area (105), wherein an electrical conductor (108) is embedded in an inner layer of the arch area (12), wherein the first heating wire (106) and the second heating wire (107) are connected to each other via the electrical conductor (108), and furthermore a connecting conductor (2) is provided on a marginal raised part of the heel area (13), which is designed for electrical connection to an external power supply (3).

Description

Technical field

[0001] The present utility model relates to the field of electrically heated insoles for outdoor use, in particular to an electrically heated insole. State of the art

[0002] Electrically heated insoles offer increasing advantages over conventional chemically heated insoles due to their rechargeability and reusability, and have become a preferred choice for outdoor activities in winter.

[0003] In the prior art, the vast majority of electrically heated insoles use an integrated concept in which the insole and battery are formed into a single unit; that is, the battery is located within the insole. For example, Chinese utility model CN204048281U discloses an electrically heated insole molded from polyurethane foam, in which a heating element and a power supply are arranged within the insole, thereby simplifying the insole's structure.

[0004] However, a battery is classified as a flammable material, and a single foot can bear loads of several tens of kilograms while standing, posing a certain safety risk; furthermore, the insole cannot be charged while the user is active. In addition, to accommodate different foot lengths, manufacturers typically have to produce insoles in several different shoe sizes, requiring heating and power supply zones to be redesigned and adapted for each size. This results in significant design effort and means that the production line typically operates on a batch basis according to shoe size, reducing production efficiency; moreover, niche sizes carry the risk of inventory build-up. Content of the present utility model

[0005] To solve the aforementioned problems, the present utility model proposes an electrically heated insole to address the problems of insufficient universality and short service life of existing insoles.

[0006] The technical solution to the aforementioned technical problems is as follows: Electrically heated insole comprising an insole body, wherein the insole body is divided into a forefoot area, an arch area, and a heel area, wherein a trimmable area is provided at the edge of the insole body in which several trimming guide lines are provided which are proportionally reduced in size from the center of the insole body, wherein shoe size markings are provided section by section at the edges of the trimming guide lines, wherein in partial areas of the forefoot area and the heel area, a front heating area and a rear heating area are defined, spaced apart from the trimmable area, wherein a first heating wire is embedded in the inner layer of the front heating area and a second heating wire is embedded in the inner layer of the rear heating area, wherein an electrical conductor is embedded in an inner layer of the arch area.wherein the first heating wire and the second heating wire are connected to each other via the electrical conductor, and a connecting conductor is further provided on a raised edge portion of the heel area, which is designed for electrical connection to an external power supply.

[0007] In some embodiments, the shoe size markings are arranged in the trimmable area on the back of the rear heating area.

[0008] In some embodiments, the first heating wire has a continuous S-shaped winding structure, and the first heating wire is laid along the edge of the front heating area to fill the front heating area.

[0009] In some embodiments, the second heating wire has a continuous S-shaped winding structure, and the second heating wire is laid along the edge of the rear heating area to fill the rear heating area.

[0010] In some embodiments, a control module is also provided on the raised edge part of the heel area, wherein an output of the control module is connected to the electrical line and an input of the control module is connected to the external power supply via the connecting line.

[0011] In some embodiments, the electrically heated insole further comprises a communication module, wherein the communication module is wirelessly connected to a mobile device, wherein a command issued by the mobile device is entered into the control module via the communication module, and wherein the control module triggers a respective power request and a respective switching command in accordance with the command.

[0012] In some embodiments, the electrically heated insole further comprises a fastening element, wherein the fastening element is designed for mounting the external power supply.

[0013] The advantageous effects of the present utility model consist of the provision of a trimmable area with cutting guide lines and shoe size markings at the edge of the insole body, and the designation of heating zones in the forefoot and heel areas of the insole body, separated from the trimmable area. Heating wires are only located within these heating zones, so that no heating wires are present in the trimmable area. This allows manufacturers to produce heated insoles in a single, uniform size, and users can trim them to fit their individual shoe shapes using the cutting guide lines and shoe size markings. No heating wires are cut during trimming, thus effectively improving the universal adaptability of the heated insole.Furthermore, the present solution uses an external power supply, so that by replacing the external power supply the operating time of the heated insole can be extended. Brief description of the characters Fig. Figure 1 is a first structural schematic representation of the insole body disclosed in an embodiment of the present utility model. Fig. Figure 2 is a second structural schematic representation of the insole body disclosed in an embodiment of the present utility model. Fig. Figure 3 is a structural schematic representation of the electrically heated insole disclosed in an embodiment of the present utility model. Detailed descriptions

[0014] To clarify the purposes, technical solution, and advantages of this utility model, its content is further explained below with reference to the drawings and specific embodiments. It is understood that the specific embodiments described herein serve only to illustrate this utility model and are not to be considered as limiting its scope. Furthermore, it should be noted that, for ease of description, the drawings depict only those parts pertaining to this utility model and not its entire content.

[0015] In this embodiment, an electrically heated insole is proposed which, as in the Fig.Figures 1 to 3 show an insole body 1. The insole body 1 is divided into a forefoot area 11, an arch area 12, and a heel area 13. A trimmable area 101 is provided at the edge of the insole body 1. Several trimming guide lines 102 are provided in the trimmable area 101, which are proportionally reduced in size starting from the center of the insole body 1. Shoe size markings 103 are provided section by section at the edges of the trimming guide lines 102. In partial areas of the forefoot area 11 and the heel area 13, a front heating area 104 and a rear heating area 105 are defined, spaced apart from the trimmable area 101 (that is, the front heating area 104 and the rear heating area 105 do not intersect with the trimmable area 101 and do not overlap with it).A first heating wire 106 is embedded in the inner layer of the anterior heating area 104, and a second heating wire 107 is embedded in the inner layer of the posterior heating area 105. An electrical conductor 108 is embedded in an inner layer of the arch area 12. The first heating wire 106 and the second heating wire 107 are connected to each other via the electrical conductor 108. Furthermore, a connecting conductor 2 is provided on a raised outer portion of the heel area 13, which is designed for electrical connection to an external power supply 3.

[0016] Preferably, the shoe size markings 103 are arranged in the trimmable area 101 on the back of the rear heating area 105. In this preferred solution, it is taken into account that the heel area 13 of the insole body 1 forms the relevant reference position for the adaptation to the shoe shape (the space in the heel area of ​​a shoe has fixed dimensions without significant play and represents the central anchor point for the fit between the insole and the shoe).By placing the shoe size markings at this point, the user can use the heel as a fixed reference point and cut along the cutting guide line of the corresponding shoe size forward to the forefoot and to both lateral edges, so that the heel of the cut insole body 1 fits precisely against the heel of the shoe and problems of a forefoot area that is too wide or too narrow, as well as an overall poor fit to the shoe shape due to a shift in the cutting reference, are avoided.

[0017] Optionally, the first heating wire 106 has a continuous S-shaped winding structure and is laid along the edge of the anterior heating area 104 to fill it. The second heating wire 107 also has a continuous S-shaped winding structure and is laid along the edge of the posterior heating area 105 to fill it. In the above solution, the first heating wire 106 and the second heating wire 107 each have a continuous S-shaped winding and are laid along the edge of the anterior heating area 104 and the posterior heating area 105, respectively, so that the respective heating area is completely filled and a uniform, full-surface heating of the forefoot and heel area is achieved, effectively improving the foot's perception of warmth.The continuous, uninterrupted winding structure ensures even force distribution across the heating wire and consistent current flow. This results in a rapid heating rate and stable temperature application, while simultaneously reducing the risk of wire breakage or solder joint delamination during wear, bending, and stress on the insole, thus improving product durability. Furthermore, the winding along the edge of the heating area clearly defines its contour, precisely separating the heating area from the trimmable area at the edge of the insole. This structurally prevents damage to the heating wire during trimming and is consistent with the insole's trimmable design.

[0018] Optionally, a control module 109 is provided on the raised edge of the heel area 13, wherein one output of the control module 109 is connected to the electrical line 108 and one input of the control module 109 is connected to the external power supply 3 via the connecting line 2. In the above solution, the arrangement of the control module 109 on the raised edge of the heel area 13 utilizes the installation space of the raised edge for a suitable arrangement of the control module 109, thereby preventing the control module 109 from coming into direct contact with the sole of the foot and thus causing a feeling of pressure or discomfort, thereby improving the user experience.On the other hand, the precise connection of the output of the control module 109 with the electrical line 108 and the input of the control module 109 via the connecting line 2 with the external power supply 3 enables stable energy transmission and effective control of the heating status of the heating wires, thereby ensuring the continuity of the supply and control connection.

[0019] Optionally, the electrically heated insole also includes a communication module, wherein the communication module is wirelessly connected to a mobile device, wherein a command issued by the mobile device is entered into the control module via the communication module, and the control module triggers a respective power request and a respective switching command according to the command.By adding the communication module for wireless connection to the mobile device, intelligent wireless control of the heated insole is achieved, allowing the user to issue commands remotely via the mobile device without manually touching the insole. The control module precisely triggers power regulation and switching control according to these commands to meet different user requirements regarding temperature and on / off switching in various application scenarios, thereby significantly improving ease of use and flexibility, and optimizing the intelligent interaction experience.

[0020] Optionally, the electrically heated insole also includes a fastening element 4, which is designed for mounting the external power supply 3. The fastening element 4 can be in the form of a fastening strap. When in use, the fastening strap is fixed to the lower leg, and a pocket opening is provided in a central area of ​​the fastening strap for inserting the external power supply 3, for example, a power bank.In the above solution, the corresponding fastening element 4 for mounting the external power supply 3 provides a stable limit and fixation of the external power supply 3, effectively preventing it from wobbling, falling off, or shifting during the user's walking or activity. This ensures the stability of the connection between the external power supply 3 and the connecting cable 2 and maintains a continuous power supply connection. Simultaneously, this facilitates the mounting and dismounting of the external power supply 3, thus meeting the user's need to replace the power supply to extend its operating life, and reduces any discomfort caused by the power supply wobbling.

[0021] The foregoing embodiments serve only to illustrate the technical idea and features of the present utility model, the purpose being to enable the person skilled in the art to understand the content of the present utility model and to permit its implementation; they are not intended to limit the scope of protection of the present utility model. Equivalent changes or modifications made on the basis of the essence of the teaching of the present utility model shall fall within the scope of protection of the present utility model. List of designations 1 insole body; 2 connection cables; 3 External power supply; 4 Fastening element; 11 Forefoot area; 12. Arch area of ​​the foot; 13 Heel area; 101 Trimmable area; 102 Cutting guide line; 103 Shoe size marking; 104 Front heating area; 105 Rear heating area; 106 First heating wire; 107 Second heating wire; 108 Electrical wiring; 109 Control module. QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] CN 204048281U

[0003]

Claims

[1] Electrically heated insole comprising an insole body (1) wherein the insole body (1) is divided into a forefoot area (11), an arch area (12) and a heel area (13), characterized bythat a trimmable area (101) is provided at the edge of the insole body (1), in which several trimming guide lines (102) are provided, which are proportionally reduced in size starting from the center of the insole body (1), wherein shoe size markings (103) are provided section by section at the edges of the trimming guide lines (102), wherein in partial areas of the forefoot area (11) and the heel area (13) a front heating area (104) and a rear heating area (105) are defined, spaced apart from the trimmable area (101), wherein a first heating wire (106) is embedded in the inner layer of the front heating area (104) and a second heating wire (107) is embedded in the inner layer of the rear heating area (105), wherein an electrical conductor (108) is embedded in an inner layer of the arch area (12) is,wherein the first heating wire (106) and the second heating wire (107) are connected to each other via the electrical conductor (108), and a connecting conductor (2) is further provided on a raised edge portion of the heel area (13), which is designed for electrical connection to an external power supply (3). [2] Electrically heated insole according to claim 1, characterized by , that the shoe size markings (103) are arranged in the trimmable area (101) on the back of the rear heating area (105). [3] Electrically heated insole according to claim 1, characterized by , that the first heating wire (106) has a continuous S-shaped winding structure and the first heating wire (106) is laid along the edge of the front heating area (104) to fill the front heating area (104). [4] Electrically heated insole according to claim 1, characterized by, that the second heating wire (107) has a continuous S-shaped winding structure and the second heating wire (107) is laid along the edge of the rear heating area (105) to fill the rear heating area (105). [5] Electrically heated insole according to claim 1, characterized by , that a control module (109) is further provided on the marginal raised part of the heel area (13), wherein an output of the control module (109) is connected to the electrical line (108) and an input of the control module (109) is connected to the external power supply (3) via the connecting line (2). [6] Electrically heated insole according to claim 5, characterized by, that the electrically heated insole further comprises a communication module, wherein the communication module is wirelessly connected to a mobile device, wherein a command issued by the mobile device is entered into the control module (109) via the communication module, and wherein the control module (109) triggers a respective power request and a respective switching command in accordance with the command. [7] Electrically heated insole according to claim 1, characterized by , that the electrically heated insole further comprises a fastening element (4), wherein the fastening element (4) is designed for mounting the external power supply (3).

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